JP2878224B2 - Decorative light - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a decorative lamp used for decorating a Christmas tree or the like.

[0002]

2. Description of the Related Art As such a decorative lamp, a light bulb is supported on a support portion, a lead wire of the light bulb is projected from a through hole formed in the support portion, folded back to a side surface of the support portion, and inserted into a socket body. There is something like that.

FIG. 6 is a top view of a through hole of a support portion. The support portion is composed of a cylindrical portion 34 and a rectangular tube portion 35,
The through hole is a first hole 31 having a circular cross section of the cylindrical portion 34.
And a second hole 32 having a square cross section of the rectangular cylindrical portion 35. A cross-sectional shape A of a portion of the second hole 32 connected to the first hole 31 is square. And a step surface 33 is formed at the boundary between the first hole 31 and the second hole 32.
Are formed.

[0004]

However, in the conventional decorative lamp, a large step surface 33 is formed at a continuous portion between the first hole portion 31 and the second hole portion 32. When the lead wire is inserted into the through hole, the lead wire may not be able to be inserted smoothly due to collision with the step surface 33 or the like. Since decorative lights are produced in very large quantities, their inability to insert smoothly has a significant adverse effect on productivity.

The present invention has been made in view of the above circumstances, and provides a decorative lamp capable of smoothly inserting a lead wire of a light bulb into a through hole of a support portion, thereby improving productivity. The purpose is to do.

[0006]

SUMMARY OF THE INVENTION The decorative lamp of the present invention comprises:
A light bulb, a support portion for supporting the light bulb, and a socket body having a release portion for mounting the support portion at one end in the axial direction, and a pair of terminals connected to a lead wire of the light bulb in the back of the release portion. A plate is assembled, the release portion is formed in a cylindrical portion at one end in the axial direction of the socket body, and the support portion protrudes coaxially with the column portion from the column portion fitted in the cylindrical portion. In the decorative lamp having a rectangular pillar portion, the supporting portion is formed with a through-hole for projecting a lead wire of the bulb supported by the supporting portion from the tip, and the through-hole corresponds to the pillar portion. 1 hole, and a second hole having a rectangular cross section corresponding to the prismatic portion, wherein the second hole is a boundary portion between the first hole and the second hole. Both end shapes in the direction of the line are formed along the inner surface of the first hole. It is an feature.

According to the operation of the present invention, both end shapes of the second hole at the boundary between the second hole and the first hole and in the direction in which the lead wires are arranged are aligned with the inner surface of the first hole. Since the shape is in accordance with the shape, the step surface formed between the first hole and the second hole becomes small, and when the lead wire is inserted, the probability that the lead wire collides with the step surface is extremely low. Become smaller. Therefore, the lead wire can be smoothly inserted into the through hole, and the productivity can be improved.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A decorative lamp according to the present invention will be described below with reference to the drawings. In the figure, reference numeral 1
Is a socket body, 2 is a support, and 3 is a light bulb. These 1, 2, and 3 constitute a decorative lamp of the present invention.

As shown in FIG. 1, the socket main body 1 has a hollow columnar body having a release portion 4 formed at one axial end thereof, and a through hole 5 opening to the release portion 4 at the other axial end of the hollow columnar body. The through hole 5 is formed and is divided into two by a partition wall 6.
The release portion 4 has a cylindrical portion 7 formed at one axial end of the socket body 1, and the other axial end of the socket body 1 is formed at a rectangular cylindrical portion 8 having a smaller sectional area than the cylindrical portion 7. The cross-sectional shape of the cylindrical portion 8 is the same as the cross-sectional shape of the through hole 5. Each terminal plate 10 connected to the tip of a pair of lead wires 9 inserted from the outside of the through hole 5 into the inside of the rectangular tube portion 8 is fixed in each mounting groove.

The support portion 2 is a member for supporting the light bulb 3. The support portion 2 is a cylindrical portion 12 fitted into the cylindrical portion 7 of the release portion 4 of the socket body 1, and the rectangular tube protruding from the tip of the cylindrical portion 12. And a prism portion 13 inserted into the portion 8.
As shown in FIG. 3, a concave portion 14 is formed on the upper surface of the cylindrical portion 12 to extend toward the prism portion 13 and into which the base end of the bulb 3 is inserted. A through-hole 16 is formed in the distal end face and through which a pair of lead wires 15 of the bulb 3 is inserted. At the tip of the through hole 16, a partition wall 17 that divides the tip opening 16 a of the through hole 16 into two is provided. As a result, the leading end of the through hole 16 is divided into two parts, and the lead wires 15 are passed through the two divided parts. Also, chamfered portions 18 are formed at both ends of the end surface of the prism portion 13, respectively.
As shown in FIG. 3, a guide groove 18 a is formed to bend the lead wires 15, 15 of the light bulb 3 protruding outside through the through-hole 16 toward the side surfaces 13 a, 13 a side of the prism portion 13, and to form a prism. When the portion 13 is inserted into the release portion 4, the lead wires 15, 15 are restrained in the guide grooves 18a. In this example, the opening end face 17a of the partition wall 17 is flush with the tip opening 16a.
Not limited to this.

FIG. 4 is a view of the support portion 2 as viewed from above. The through hole 16 has a first hole portion 21 corresponding to the cylindrical portion 12 and a second hole portion 22 having a square cross section. Is composed of
The direction in which the lead wires 15 and 15 (see FIG. 3) are arranged at the boundary between the second hole 22 and the first hole 21 (see FIG. 4).
The shape B at both ends (middle left / right direction) is changed to the inner surface C
It has a shape along.

The outer surface of the cylindrical portion 12 has a tapered shape with a slight taper toward the tip, and both side surfaces of the prism portion 13 (the side where the tip of the lead wire 15 of the bulb 3 is located) 13a, Reference numeral 13a is a tapered tip having a taper degree slightly larger than the outer surface of the cylindrical portion 12 toward the distal end, so that the prism portion 13 is smoothly inserted into the release portion 4 and the cylindrical portion 12 is smoothly inserted into the cylindrical portion 7. Each lead wire 1 on the side surface 13a of the prism portion 13
Good contact between the inner surface of each terminal plate 10 and the terminals 5 and 15 is enabled.

The decorative lamp having such a configuration is assembled as follows.

A pair of terminal plates 10 and lead wires 9 are inserted into the socket body 1 through the through holes 16 at the back of the release portion 4, and each terminal plate 10 is attached in parallel to a predetermined position of the rectangular tube portion 8. The bulb 3 is mounted in the recess 14 with respect to the support portion 2, and the lead wires 15, 15 of the bulb 3 are inserted into the through holes 16 so as to protrude outside the prism portion 13. Through each of the guide grooves 18.
Bend along a.

The through hole 16 is composed of a first hole 21 having a circular cross section corresponding to the cylindrical portion 12 and a second hole 22 having a rectangular cross section corresponding to the prism 13. 2
The shape B of both ends of the hole 22 at the boundary between the first hole 21 and the direction in which the lead wires 15 and 15 (see FIG. 3) are arranged (the left-right direction in FIG. 4) is changed to the first hole 21. Is formed along the inner surface of the first hole 21 and the second hole 2
2, and the probability of collision with the step surface 23 when the lead wires 15, 15 are inserted into the through holes 16 is extremely small. Therefore, when the lead wires 15 are inserted into the through hole 16, the lead wires 15 can be inserted smoothly without being bent. The productivity of the manufacture of decorative lights can be significantly increased.

Subsequently, the prism 13 at the tip of the support 2 is inserted into the prism 8 through the cylinder 7 of the release 4 of the socket body 1. First, the chamfered portion 18 of the prism portion 13 is guided between the terminal plates 10 and 10 positioned in parallel in the rectangular tube portion 8 and smoothly enters, and the tapered side surfaces 13a and 13a continuing from each chamfered portion 18 are formed. The prism 13 penetrates deeply between the terminal plates 10, 10 while pressing the terminal plates 10, 10 against the inner wall side of the rectangular tube portion 8 by contacting the inner surfaces of the terminal plates 10, 10 (see FIG. 2).

At this time, from the tip end surface of the prism portion 13 to both side surfaces 13
Since each lead wire 15 comes into contact with the inner surface of each terminal plate 10 while being restrained rearward by the guide groove 18a of each chamfered portion 18 of each lead wire 15 that is exposed over the lead wires 15a and 13a, the respective lead wires 15 It is stably contacted with the inner surface of each terminal board 10 without causing displacement. Also, of the lead wire 15, the inner wall of the conventional rectangular tube portion 8 or each terminal plate 10
The bent portions on both sides, which were portions receiving a large amount of frictional resistance with the upper end of the terminal plate, are immersed in the guide grooves 18a, are protected by the chamfered portions 18, and are not pressed without receiving any frictional resistance. , So that the contact with the inner surface of each terminal plate 10 is stabilized, and the lead wire 15 is not damaged.

The cylindrical portion 12 following the rectangular column portion 13 smoothly penetrates into the cylindrical portion 7 and fits deeply into the cylindrical portion 7 by the taper action of the outer surface of the cylindrical portion 12.

FIG. 5 is a plan view of a supporting portion according to another embodiment of the present invention.

In this case, the end of the support 25 is hexagonal, and a through hole 26 is formed inside the support 25. The through-hole 26 has a cylindrical first hole 27,
A second hole 28 is provided continuously with the first hole 27. The second hole 28 is a boundary between the second hole 28 and the first hole 27 and the lead wires 15 and 15 (FIG. 3) (in the left-right direction in FIG. 5) is substantially along the inner surface E of the first hole 27.

Also in this case, the step surface 29 between the first hole 27 and the second hole 28 becomes small, and the lead wire 1
5 and 15 can be smoothly inserted into the through hole 16.

[0022]

As described above, according to the decorative lamp of the present invention, a socket body having a bulb, a supporting portion for supporting the bulb, and a release portion for mounting the supporting portion at one axial end is provided. A pair of terminal plates that are connected to the lead wire of the light bulb are attached to the back of the release portion, the release portion is formed at one axial end of a socket body in a cylindrical portion, and the support portion is the cylindrical portion. In a decorative lamp having a pillar portion fitted to the shape portion, and a prism portion coaxially projecting from the pillar portion with the pillar portion, the support portion includes a lead wire of a bulb supported by the support portion. A through hole that protrudes from the tip is formed,
The through-hole includes a first hole corresponding to the pillar, and a second hole having a square cross section corresponding to the prism.
By forming both ends of the second hole in a boundary portion with the first hole and in a direction in which the lead wires are arranged along the inner surface of the first hole, the shape of the light bulb is improved. The lead wire can be smoothly inserted into the through hole of the support portion, thereby improving the productivity.

[Brief description of the drawings]

FIG. 1 is an exploded view showing a decorative lamp according to an embodiment of the present invention.

FIG. 2 is an assembly view of the decorative lamp of FIG. 1;

FIG. 3 is a sectional view of a support portion of the decorative lamp of FIG. 1;

FIG. 4 is a plan view showing a supporting portion of the decorative lamp of FIG. 1;

FIG. 5 is a plan view showing a support portion of a decorative lamp according to another embodiment of the present invention.

FIG. 6 is a plan view showing a supporting portion of a conventional decorative lamp.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Socket main body 2 Support part 3 Light bulb 4 Release part 7 Cylindrical part 8 Square tube part 10 Terminal board 12 Column part 13 Square column part 15 Lead wire 16 Through hole 16a Tip opening 17 Partition wall 21, 27 First hole 22, 28 First 2 holes

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁶ , DB name) H01K 1/46 H01K 7/06

Claims (1)

(57) [Claims] 1. A light bulb, a supporting portion for supporting the light bulb,
A socket body having a release portion for mounting the support portion at one end in the axial direction, and a pair of terminal plates electrically connected to a lead wire of the electric bulb are attached at the back of the release portion; One end in the axial direction is formed in a cylindrical portion,
The supporting portion is a decorative lamp having a pillar portion fitted to the cylindrical portion and a prism portion protruding coaxially with the pillar portion from the pillar portion, wherein the supporting portion is supported by the supporting portion. A through-hole for projecting the lead wire of the light bulb from the tip is formed, and the through-hole is formed by a first hole corresponding to the column and a second hole having a square cross section corresponding to the prism. Wherein both ends of the second hole at the boundary with the first hole and in the direction in which the lead wires are arranged are formed along the inner surface of the first hole. Characteristic decorative light.